'use strict';
const db = uniCloud.database();
const dbCmd = db.command
exports.main = async (event, context) => {
	//event为客户端上传的参数
	const {
		username,
		goods_id
	} = event
	await db.collection('uni-id-users').where({
		username: username
	}).update({
		cart: dbCmd.addToSet(goods_id)
	})
	//返回数据给客户端
	return event
};
